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Table 2 pH values for brines with chelating agents (2D * \(\hbox {TB}_{\mathrm{chelating}}\)) and deionized water with chelating (\(\hbox {DI}_{\mathrm{chelating}}\))
From: Chelating agents for diluted geothermal brine reinjection
2D * \(\hbox {TB}_{\mathrm{oxalic}}\) | \(\hbox {DI}_{\mathrm{oxalic}}\) | 2D * \(\hbox {TB}_{\mathrm{EDTA}}\) | \(\hbox {DI}_{\mathrm{EDTA}}\) | 2D * \(\hbox {TB}_{\mathrm{EDDS}}\) | \(\hbox {DI}_{\mathrm{EDDS}}\) | 2D * \(\hbox {TB}_{\mathrm{HAs}}\) | \(\hbox {DI}_{\mathrm{HAs}}\) | |
|---|---|---|---|---|---|---|---|---|
pH | 2.59 ± 0.21 | 2.68 ± 0.01 | 2.59 ± 0.21 | 2.96 ± 0.58 | 6.18 ± 0.02 | 9.44 ± 0.20 | 6.25 ± 0.25 | 7.53 ± 0.02 |